Display Apparatus for Vehicle

1. A display apparatus for a vehicle, comprising: a display unit; a gesture sensing device configured to sense a 3D gesture made by an object in front of the display unit; and a processor configured to control, based on the 3D gesture made by the object, the display unit, wherein the gesture sensing device includes: a first light-emitting device configured to emit a first group of rays along a first path, a second light-emitting device configured to emit a second group of rays along a second path, and a light-receiving unit configured to receive (i) reflected rays of the first group of rays that are reflected from the object and (ii) reflected rays of the second group of rays that are reflected from the object, wherein the light-receiving unit further includes: a lens that is configured to: receive the reflected rays of the first group of rays and the reflected rays of the second group of rays, and change respective paths of the reflected rays of the first group of rays and the reflected rays of the second group of rays, and a plurality of photodiodes that are configured to: accept, from the lens, the reflected rays of the first group of rays and the reflected rays of the second group of rays, and generate, based on the reflected rays of the first group of rays and the reflected rays of the second group of rays, current signals.

2. The display apparatus of claim 1 , wherein the gesture sensing device is located at a first side of the display unit.

3. The display apparatus of claim 1 , wherein the first light-emitting device includes: a first printed circuit board, and a first group of infrared light sources that are mounted on the first printed circuit board and that are configured to generate the first group of rays, wherein the second light-emitting device includes: a second printed circuit board, and a second group of infrared light sources that are mounted on the second printed circuit board and that are configured to generate the second group of rays, and wherein the light-receiving unit includes: a third printed circuit board, and a plurality of photodiodes that are mounted on the third printed circuit board and that are configured to accept the reflected rays of the first group of rays and the reflected rays of the second group of rays.

4. The display apparatus of claim 3 , wherein the gesture sensing device further includes: a first barrier located between the first group of infrared light sources and the photodiodes, and a second barrier located between the photodiodes and the second group of infrared light sources.

5. The display apparatus of claim 1 , wherein the first light-emitting device includes: a plurality of infrared light sources that are configured to generate the first group of rays, and a wedge lens that is configured to receive the first group of rays from the plurality of infrared light sources and change respective paths of the first group of rays.

6. The display apparatus of claim 5 , wherein the plurality of infrared light sources include: a first light source that is configured to generate a first ray in the first group of rays, and a second light source that is configured to generate a second ray in the first group of rays, and wherein the wedge lens includes: a first wedge lens that is configured to change a path of the first ray, and a second wedge lens that is configured to change a path of the second ray.

7. The display apparatus of claim 6 , wherein the processor is configured to: control the first light source to emit the first ray for a first time period, and control a second light source to emit the second ray for a second time period.

8. The display apparatus of claim 5 , wherein the first light-emitting device further includes: a beam shaper that is configured to receive the first group of rays from the wedge lens and change energy distribution of each ray of the first group of rays.

9. The display apparatus of claim 8 , wherein the first light-emitting device further includes: a light guide that is configured to receive the first group of rays from the beam shaper and guide the first group of rays toward the object.

10. The display apparatus of claim 1 , wherein the second light-emitting device includes: a plurality of infrared light sources that are configured to generate the second group of rays, and a wedge lens that is configured to receive the second group of rays from the plurality of infrared light sources and change respective paths of the second group of rays.

11. The display apparatus of claim 10 , wherein the plurality of infrared light sources include: a first light source that is configured to generate a first ray in the second group of rays, and a second light source that is configured to generate a second ray in the second group of rays, and wherein the wedge lens includes: a first wedge lens that is configured to change a path of the first ray, and a second wedge lens that is configured to change a path of the second ray.

12. The display apparatus of claim 11 , wherein the processor is configured to: control the first light source to emit the first ray for a first time period; and control the second light source to emit the second ray for a second time period.

13. The display apparatus of claim 1 , wherein the light-receiving unit includes: a light guide that is configured to guide, toward the lens, the reflected rays of the first group of rays and the reflected rays of the second group of rays.

14. The display apparatus of claim 1 , wherein the processor is configured to: control the first light-emitting device to emit the first group of rays for a first time period, and control the second light-emitting device to emit the second group of rays for a second time period.

15. The display apparatus of claim 1 , wherein the light-receiving unit is located between the first light-emitting device and the second light-emitting device.

16. The display apparatus of claim 1 , wherein the processor is configured to detect, based on the reflected rays of the first group of rays or the reflected rays of the second group of rays, a 3D gesture of the object about a first axis within a distance between the display unit and the object.

17. The display apparatus of claim 1 , wherein the first light-emitting device includes: a first group of light sources that is configured to generate the first group of rays, and wherein the processor is configured to detect, based on a determination that the reflected rays of the first group of rays are received, a 3D gesture of the object about a first axis within a distance between the display unit and the object.

18. The display apparatus of claim 17 , wherein the second light-emitting device includes: a second group of light sources that is configured to generate the second group of rays, and wherein the processor is configured to detect, based on a determination that the reflected rays of the second group of rays are received, a 3D gesture of the object about a first axis within a distance between the display unit and the object.

19. The display apparatus of claim 1 , further comprising: a camera that is configured to capture an interior image of the vehicle, wherein the processor is configured to: detect one or more objects in the interior image, and generate a control signal based on the one or more objects in the image.